MerchantAdvantage is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Widdit has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Religion & Spirituality, Music & Audio and 80 other categories.
MerchantAdvantage is leading in Shopping, Home & Garden, Health, Furniture and 18 other categories.
Widdit is leading in most countries, including Indonesia, India, Brazil, Russia and 40 other countries.
MerchantAdvantage is leading in United States, Canada, South Africa, Singapore and one other country.